Reaction specificity in catalysts reported to exhibit strong metal-support interactions |
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| Authors: | R Burch and A R Flambard |
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| Institution: | (1) Department of Chemistry, The University, Whiteknights, Reading, England |
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| Abstract: | The specific activities of a 10% Ni/TiO2 and a 10% Ni/SiO2 catalyst for the hydrogenolysis of n-hexane and for the methanation reaction have been investigated. Both catalysts have very similar activities and selectivities for hydrogenolysis. However, the titania-supported catalyst exhibits a considerably greater specific activity for methanation. It is concluded that this enhancement of activity is reaction specific, and we propose a mechanism involving the adsorption of CO onto the surface of titania.
                   10% Ni/TiO2 10% Ni/SiO2  -    .     . , TiO2   . ,  .   , CO .
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